a thin groove cut in stone or brickwork, esp to hold the edge of a roof
Word origin
C19: of obscure origin
raggle in American English
(ˈræɡəl)
noun
1.
a groove cut in masonry to receive flashing
2. Also called: raggle block
a manufactured masonry unit, usually of terra cotta, having a groove for receiving flashing
Word origin
[1880–85; orig. uncert.]This word is first recorded in the period 1880–85. Other words that entered Englishat around the same time include: Chief of Staff, barnstorm, highball, interface, jackpot